Can a Squeezebox stream Sirius and MP3's simultaneously?

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I'm looking at a squeezebox to deliver Internet radio and MP3's to my whole house audio system. 3 zones powered from one reciever.
Will the squeezebox be able to stream MP3's to Zone 1 while it is also streaming Sirius to Zone 2?

On a related note, will I need another subscription to Sirius or can I use one of my existing subscription's access to their Internet stream?

Thanks.

 

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For the sirch crew...

The SB Duet can only stream either/or, not both simultaneously. Unless you get a second receiver.
Existing Sirius subscribers can use their SB Duet to stream off the Internet, and there is a hi bit rate version available for an extra $3/month. (Ya pay Sirius for that, not Logitech)
Hope this helps somebody down the road.